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[Bug target/83488] New: [8 Regression] ICE on a CET test-case
- From: "marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 19 Dec 2017 12:44:04 +0000
- Subject: [Bug target/83488] New: [8 Regression] ICE on a CET test-case
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83488
Bug ID: 83488
Summary: [8 Regression] ICE on a CET test-case
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: igor.v.tsimbalist at intel dot com
Target Milestone: ---
Host: x86_64-linux-gnu
Starting from r253977 we ICE on:
$ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c
-mavx5124vnniw
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c: In
function ‘test’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c:32:1:
error: unrecognizable insn:
}
^
(insn 8 7 9 2 (set (reg:DI 87)
(unspec_volatile:DI [
(reg:DI 88)
] UNSPECV_NOP_RDSSP))
"/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c":19
-1
(nil))
during RTL pass: vregs
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c:32:1:
internal compiler error: in extract_insn, at recog.c:2306
0x5afca1 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../gcc/rtl-error.c:108
0x5afcc0 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../gcc/rtl-error.c:116
0xb1a757 extract_insn(rtx_insn*)
../../gcc/recog.c:2306
0x8c54cd instantiate_virtual_regs_in_insn
../../gcc/function.c:1591
0x8c54cd instantiate_virtual_regs
../../gcc/function.c:1960
0x8c54cd execute
../../gcc/function.c:2009